It’s for charging a phone, the internal battery is pretty large but not recommended if you like blast the speaker like I do. The speaker very loud and if you’re just listening indoors at a medium level like in the garage you could use the usb to charge your phone while you play music.

How durable would this speaker be on the beach with sand? I'd imagine if water is not an issue than the grains cannot get in anywhere they should not be!

A shopper
on Feb 11, 2018

BEST ANSWER:This speaker is Great!! I just worked a 13 hr day with it running at low volume and no pre-warning of low battery!As for durability, mine has been dropped, the rubber body is great, and it can take a beating. As for sand, beach sand can get sticky if wetness and sand are involved. And sand gets into EVERY crack.ANY speaker that gets a lot of sand in it without properly getting the sand out, will start to hear vibrations when the volume goes up. The speaker is great for what it is = getting portable sound everywhere other than a small speaker phone for a killer price.I also own the smaller version of this unit and the Large Melody speaker which are also great buys!!

BEST ANSWER:This speaker is Great!! I just worked a 13 hr day with it running at low volume and no pre-warning of low battery!As for durability, mine has been dropped, the rubber body is great, and it can take a beating. As for sand, beach sand can get sticky if wetness and sand are involved. And sand gets into EVERY crack.ANY speaker that gets a lot of sand in it without properly getting the sand out, will start to hear vibrations when the volume goes up. The speaker is great for what it is = getting portable sound everywhere other than a small speaker phone for a killer price.I also own the smaller version of this unit and the Large Melody speaker which are also great buys!!

It's not completely sealed and small grains could get into the plugin orifices and speaker grill. I would seriously recommend keeping it up off the sand to avoid clogging up things. Otherwise, it's a pretty durable speaker. I've had mine out in the rain on our deck without any noticeable damage.

I've taken mine to the beach a few times now. I clipped it onto an umbrella, and called it good. It's gotten sand and water on it, but it all cleaned off easily afterwards, and the speaker still works perfectly.

Its actually pretty good. All depends on volume and the kind of music you ate playing (heavy bass uses energy period). My preference is rock-n-roll and i get about 5 hrs on a single charge, playing at about 65-70% volume.

I purchased this unit for my two teenagers who love to listen to music, imagine that! It's funny because as I am typing this review in my office I am being blown away by how loud this speaker is as he is taking a shower a few doors down. The sound is crazy loud! The battery life seems to be very good according to both of my teenagers 15yrs and 18 yrs old. We have a pool so looking forward to using it around the pool this summer!

I don't know what the exact time mine lasts, but I can say that I use it pretty much daily for about 20-30mins and I've owned it since June 2018 (about 7 months) and I've only had to charge it 3 times over that timeframe. That's plenty good for me!

BEST ANSWER:Using the auxilliary inputs with the proper stereo splitter and cables, yes, this is possible. You may experience loss of gain as you're sharing the output wattage from your one source to drive two devices. To my knowledge, it's not possible to split the one Bluetooth signal to two Bluetooth receivers.

BEST ANSWER:Using the auxilliary inputs with the proper stereo splitter and cables, yes, this is possible. You may experience loss of gain as you're sharing the output wattage from your one source to drive two devices. To my knowledge, it's not possible to split the one Bluetooth signal to two Bluetooth receivers.

Any newer phone that has Bluetooth 5.0 can be put into Dual Audio mode and play on two speakers at once. Other than the Galaxy S8 and onwards and the iPhone 8 and onwards I don't know what other phones come with it, you will have to look it up for your own phone

BEST ANSWER:There is on the Deep Blue 10. There's a 1/8" headphone jack next to the charging port. And it's a pretty fantastic-sounding speaker. I was surprised at the sound quality from something this size.

BEST ANSWER:There is on the Deep Blue 10. There's a 1/8" headphone jack next to the charging port. And it's a pretty fantastic-sounding speaker. I was surprised at the sound quality from something this size.

We have several of these around the hotel and a lot of them are turned on all the time. We have never had an issue with them not working and the ones that are regularly get moved to stations (working off batteries) work just as long as the new ones on battery.

How many watts? I'd like to know how it compares to the capsule speaker?

A shopper
on Apr 7, 2020

BEST ANSWER:The Quick Start guide states 5 watts x 2 (Stereo.) It has a larger battery than many other similar sized speakers, so you get a lot of decent sound for quite a good run time. And it can get scary loud and clean! (I mix sound for our church, so have been in the biz for awhile. (The days of tubes...:) Stu

BEST ANSWER:The Quick Start guide states 5 watts x 2 (Stereo.) It has a larger battery than many other similar sized speakers, so you get a lot of decent sound for quite a good run time. And it can get scary loud and clean! (I mix sound for our church, so have been in the biz for awhile. (The days of tubes...:) Stu

It's fine for enjoying background music, in your kitchen or poolside it's good for the price. charge last a long time and easy to connect. If you are looking for loud music at a beach or park youay be dissatisfied.

LOL this doesn't float either does it? - carabiner is not the answer - you forgot lakes/air mattresses (aka 'worst case scenario' which is why anyone would think to make a speaker waterproof in the first place.) and don't tell me to tie a balloon please

I bought a Deep Blue Sub710 a few weeks back and I'm curious if what I'm seeing is normal operation, or a defect? The +/- buttons do double duty according to the little instruction booklet. They both control the volume, as well as the skipping/replay of tracks. The instruction booklet states to quickly press either button to raise or lower the volume, but a longer press on either will skip or replay the track (depending on which is pressed of course). However, for my unit, these functions seem reversed, which is definitely mildly annoying. In order to turn up the volume, I need to press and hold the + button. A short press skips to the next track instead. This can become aggravating for sure when you skip 2 or 3 songs when all you wanted was louder volume. Has anyone else noticed this and can confirm that theirs acts this way as well, or is it s malfunction on mine? Otherwise, my unit seems to works perfectly fine and sounds great (especially for the price). Ideally though, I'd prefer if the buttons worked as intended and I may opt for an exchange if I can verify that the buttons should work as the booklet states.

Difficult pair if what you are pairing to does not have a screen and keyboard. For example tried pairing to TV and could not. Directions say turn on and choose speaker on screen. There are no directions saying how to put in pairing mode. For Items I was able to pair with speaker was okay. Not great sound. Very good for price though.

Sounds great when Bluetooth is connected without interruption. Your bluetooth device can't be very far from speaker and nothing can be between them or sound cuts out. Even something as simple as walking between speaker and a phone.